DL 380 G6 - Solaris - I/O failure

- dropped off network while i and others users were logged in- ilo remote console worked but keyboard input not accepted (tried both types)- physical console switch in computer room worked fine- unable to ping remote gateway- no o/s errors reports- unplugged primary nic, was not detected by o/s at all, multipath s/w thought the link remained 'up' even though it was unplugged